期刊文献+

卸荷式板桩结构性能试验研究 被引量:2

Experimental study on structural performances of unloading sheet piles
下载PDF
导出
摘要 卸荷式板桩具有极其复杂的荷载传递方式与协调工作机理,因此探索其结构的承载力性能意义重大。结合工程案例进行现场实测以研究其承载力特性。结果表明:该结构墙身在16 m处水平位移量随着时间的推移而逐渐增大并趋于稳定,锚锭墙整体最大水平位移发生在锚锭点处;拉杆拉力在浚深挖泥初期有较大幅度的增加而后期拉杆内力趋于稳定;侧向土压力分布近似服从静止土压力分布;超静孔隙水压力在主动区-20 m以上有所减小而被动区-20 m以下略有增大。试验研究证明该新型卸荷式板桩具备良好的承载力机理与工作性能,可广泛应用于大型复杂的深水码头等工程。 The unloading type sheet pile has enormous complexity of load transfer method and coordination mechanism, thus exploring the structure of the bearing capacity performance is of great significance, especially the bearing capacity characteristics are studied by combining with specific engineering cases for the field measurement. The results show that the wails in the 16 m at the amount of horizontal displacement over time are gradually increased and stabilized, and the overall maximum horizontal displacement of the anchor wall occurs at the anchor Drawbar pull is substantially increased in the early deep dredging period, and tends to be steady in the later period. The distribution of lateral earth pressure is approximately determined by the distribution of earth pressure at rest, and the fluctuation is due to uneven distribution of various soil and interlayer, but the overall trend remains unchanged. The excess pore water pressure is reduced at the height of -20 m or more in the active region, following a slight increase under the height of -20 m in the passive zone. All results show that the unloading sheet pile has high bearing capacity mechanism and working performance functions, and can be widely used in large-scale complex deepwater pier projects.
作者 吴丽华
出处 《水运工程》 北大核心 2013年第12期74-79,共6页 Port & Waterway Engineering
基金 江苏省交通科学研究计划项目(2012Y24-3)
关键词 卸荷式板桩 结构性能试验 水平位移量 拉杆拉力 侧向土压力 孔隙水压力 unloading sheet pile structural performance experiment horizontal displacement drawbar pull lateral earth pressure pore water pressure
  • 相关文献

参考文献9

  • 1孙经龙.带卸荷板空心方块码头设计中若干问题探讨[J].水运工程,2010(7):33-36.
  • 2伍荣官,汪丁江.带简支式卸荷板的重力式码头[J].水运工程,1999(11):26-29.
  • 3GB50023-1995建筑抗震鉴定标准[S].
  • 4Ghaly A, Hanna A, Hanna M.Upliftbehavior of screwanchors in sand[J]. J Geotech Engrg:ASCE, 1998,117(5): 1 300-1 317.
  • 5Lutenegger A J. Uplift capacity ofsmall-diameter drilled shafts from in situtests[J]. J Geotech Engrg:ASCE, 1994, 120(8): 1 362-1 380.
  • 6苑桂永,王丽娟,李敬梅.基坑开挖过程中地下连续墙位移与土压力分析[J].港工技术,2003,40(2):46-48. 被引量:4
  • 7Ahmed S A.Tension tests on smooth andrough model pipesin drysand[J]. Can Geotech J, 1998, 36(4): 746-753.
  • 8王维雅.钻孔灌注桩抗拔荷载的传递机理研究[J].合肥工业大学学报(自然科学版),1998,21(4):71-77. 被引量:16
  • 9Jardine R J, Overy R F, Chow C. Axial capacity of offshore piles in sense north sea sands[J]. Geotech Engrg: ASCE, 1998, 124(2):171-177.

二级参考文献4

  • 1史鸿林,王维雅,刘庆展.用抗拔桩处理水工建筑物抗浮的试验研究[J].水利水电技术,1996,27(7):49-55. 被引量:8
  • 2陆震铨 祝国荣(译).地下连续墙的理论与实践[M].北京:中国铁道出版社,1985..
  • 3GBJ7-89建筑地基基础设计规范.北京:中国建筑工业出版社,1989.
  • 4JGJ94-94建筑桩基技术规范.北京:中国建筑工业出版社,1995.

共引文献20

同被引文献15

引证文献2

二级引证文献2

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部